Question
In a right angles trainagle, one acute angle is double the other. If the length of its hypotenuse is 20 cm, the find its area?
More Mensuration Questions
- Mr. Vivek divides Rs. 1703 such that 4 times the 1st share, thrice the 2nd share and twice the third share amount to the same. Then the value of the 2nd sh...
- The value of tan2 θ + cot2 θ − sec2 θ cosec2 θ is:
- The sum of the radius and height of a cylinder is 42m. The total surface area of the cylinder is 5544 m². What is the volume of the cylinder?
- The radius of a hemisphere is 10 cm. What is the total surface area of the hemisphere (including the base)?
- A candidate just passed by getting 150 answers correct by attempting 225 of the total questions. Find the total number of questions in the examination if a...
- If the circumference of a circle is 154 cm then find the area of the circle?
- A solid metallic cylinder of radius 5 cm and height 8 cm is melted and recast into 10 identical solid cones, each having radius 2 cm. What is the height of...
- The ratio between the number of sides of two regular polygons is 1 : 2 and the ratio between their interior angle is 2 : 3. Then the number of sides of the...
- Question 9
- If the length and breadth of a rectangle are in the ratio 5: 2 and its perimeter is 28 cm, then the area of the rectangle (in cm²) is :
Relevant for Exams:
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
- 200 Questions with Detailed Solutions
- Section-wise Coverage (GA, English, Quant & Reasoning)
Let acute angle be x Other acute angle be 2x Sum of all the angles of triangle = 180° x + 2x + 90 = 180 3x = 90 x = 30 In ∆ABC sin60° = AC/BC 1/2 = BC/20 → BC = 10 cm cos60° = AB/AC →AB/20 √3/2 = AB/20 - AB = 10√3 Area of triangle = 1/2 × base × height = 1/2 × 10√3 × 10 = 50√3 cm²