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0
votes
15
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The total surface area of solid hemisphere of radius is (A) πr2 (B) 2πr2 (C) 3πr2 (D) 4πr2
answered
Sep 8
in
Maths
0
votes
14
views
Find the mean using the step deviation method. Class 0-10, 10-20, 20-30, 30-40, 40-50, Frequency 6 10 15 9 10.
answered
Sep 8
in
Maths
cbse
class 10
0
votes
43
views
The perimeter of sector OACB of the circle centred at O and of radius 24, is 73.12 cm. (i) Find the central angle ∠AOB
answered
Sep 8
in
Maths
cbse
class 10
0
votes
16
views
A train travels at a certain average speed for a distance of 132 km and then travels a distance of 140 km
answered
Sep 8
in
Maths
cbse
class 10
0
votes
142
views
Line 4x + y = 4 divides the line segment joining the points (−2, −1) and (3, 5) in a certain ratio. Find the ratio.
answered
Sep 8
in
Maths
cbse
class 10
0
votes
30
views
Find the ratio in which the y-axis divides the line segment joining the points (4, −5) and (−1, 2). .
answered
Sep 8
in
Maths
cbse
class 10
0
votes
30
views
In the given figure, PA and PB are tangents to a circle centred at O. Prove that (i) OP bisects ∠APB
answered
Sep 8
in
Maths
cbse
class 10
0
votes
21
views
Amita buys some books for ₹1920. If she had bought 4 more books for the same amount each book would cost her
answered
Sep 8
in
Maths
cbse
class 10
0
votes
24
views
From the top of a 9 m high building, the angle of elevation of the top of a cable tower is 60º and angle of depression
answered
Sep 8
in
Maths
cbse
class 10
0
votes
63
views
A group of students conducted a survey to find out about the preferred mode of transportation to school among their
answered
Sep 8
in
Maths
cbse
class 10
0
votes
137
views
P(x, y) is a point equidistant from the points A(4, 3) and B(3, 4). Prove that x − y = 0
answered
Sep 7
in
Maths
cbse
class 10
0
votes
668
views
The sum of the first 12 terms of an A.P. is 900. If its first term is 20 then find the common difference and 12th term.
answered
Sep 7
in
Maths
cbse
class 10
0
votes
47
views
In the given figure, ∆ABC is an equilateral triangle. Coordinates of vertices A and B are (0,3) and (0,−3) respectively
answered
Sep 7
in
Maths
cbse
class 10
0
votes
51
views
Rinku was very happy to receive a fancy jumbo pencil from his best friend Rohan on his birthday.
answered
Sep 7
in
Maths
cbse
class 10
0
votes
423
views
Radha, an aspiring landscape designer, is tasked with creating a visually captivating pool design that incorporates
answered
Sep 7
in
Maths
cbse
class 10
0
votes
38
views
The 4th term from the end of the A.P −8, −5, −2, … ,49 is (A) 37 (B) 40 (C) 1 (D) 43
answered
Sep 7
in
Maths
cbse
class 10
0
votes
105
views
In the given figure, if △ OCA ∼△ OBD then ∠OAC is equal to (A) 58º (B) 55º (C) 128º (D) 52º
answered
Sep 7
in
Maths
cbse
class 10
0
votes
426
views
If perimeter of given triangle is 38 cm, then length AP is equal to (A)19 cm (B) 5 cm (C) 10 cm (D) 8 cm
answered
Sep 7
in
Maths
cbse
class 10
0
votes
125
views
A quadratic polynomial whose zeroes are 2/5 and −1/5 is (A) 25x2 + 5x − 2 (B) 5x2 − 2x + 1 (C) 5x2 + 2x − 1
answered
Sep 7
in
Maths
cbse
class 10
0
votes
966
views
If △ABC∼△PQR such that 3AB = 2PQ and BC=10 cm, then length QR is equal to (A) 10 cm (B) 15 cm (C) 20 3cm (D) 30 cm
answered
Sep 7
in
Maths
cbse
class 10
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