angle Search

Q:

An equilateral triangle has sides of 10 cm each. Find the ratio of in-radius to the circum-radius of the triangle.

A) 1 : 1	B) 1 : 2
C) 2 : 1	D) 1 : 3

Answer & Explanation Answer: B) 1 : 2

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

In the following figure, rectangle represents Reporters, circle represents Artists, triangle represents Mountain climbers and square represents Football players. Which set of letters represents Reporters who are Mountain climbers?

A) AH	B) BG
C) CF	D) LM

Answer & Explanation Answer: A) AH

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Filed Under: Image Analysis
Exam Prep: Bank Exams

Q:

The shadow of a tower on ground level is increased by 30 m, when the angle of depression by the sun changes from 60 deg to 30 deg. The height of the tower is

A) 12√3 m	B) 17√3 m
C) 16√3 m	D) 15√3 m

Answer & Explanation Answer: D) 15√3 m

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Filed Under: Height and Distance
Exam Prep: Bank Exams

Q:

Consider the following statements & choose the correct options

When two straight lines intersect then,

1. Adjacent angles are supplementary

2. Opposite angles are supplementary

A) Both 1 & 2 are incorrect	B) Both 1 & 2 are correct
C) 1 is incorrect and 2 is correct	D) 1 is correct and 2 is incorrect

Answer & Explanation Answer: D) 1 is correct and 2 is incorrect

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Filed Under: Statement and Conclusions
Exam Prep: Bank Exams

Q:

If the angles of a triangle are in the ratio of 2 : 5 : 8, then find the value of the smallest angle.

A) 36 deg	B) 18 deg
C) 12 deg	D) 24 deg

Answer & Explanation Answer: D) 24 deg

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

Q:

The angle of elevation of a ladder leaning against a wall is 60 deg and the foot of the ladder is 4.2 m away from the wall. The length of the ladder is

A) 9.2 m	B) 11.4 m
C) 8.5 m	D) 13.5 m

Answer & Explanation Answer: A) 9.2 m

Explanation:

$Let AB be the wall and BC be the ladder . Then, ∠ ACB = 60 ° and AC = 4.6 m . AC / BC = \cos 60 ° = 1 / 2 \Rightarrow BC = 2 \times AC = (2 \times 4.6) m = 9.2 m$