Question
The sides of some triangles are given below. Find out which ones are right-angled triangles ? : 40, 20, 30
✓
Answer
40² = 1600, 20² = 400, 30² = 900
But, 400 + 900 ≠ 1600
∴ 20² + 30² ≠ 40²
∴ The above expression is not of the from (hypotenuse)² = (base)² + (height)²
∴ The sides of lengths 40, 20, 30 will not form a right-angled triangle.
But, 400 + 900 ≠ 1600
∴ 20² + 30² ≠ 40²
∴ The above expression is not of the from (hypotenuse)² = (base)² + (height)²
∴ The sides of lengths 40, 20, 30 will not form a right-angled triangle.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Simplify and express the following in exponential form:
$\left\{\left(3^2\right)^3 \times 2^6\right\} \times 5^6$
→$\left\{\left(3^2\right)^3 \times 2^6\right\} \times 5^6$
Divide:
$\frac{-3}{4}\text{ by }\frac{9}{-16}$
→$\frac{-3}{4}\text{ by }\frac{9}{-16}$
The measures of some angles are given below. Write the measures of their complementary angles. : 40°
A car can cover a distance of 357km on 42 litres of petrol. How far can it travel on 12 litres of petrol?
Which of the two rational numbers in the following pairs of rational numbers is greater?
$\frac{-3}{8},0$
→$\frac{-3}{8},0$
Find which of the following are in proportion?
46, 69, 69, 46
46, 69, 69, 46
Find:$\frac{5}{8}$ of a kilogram.
→In each of the following pairs of right triangles, the measures of some parts are indicated along side. State by the application of RHS congruence condition which are congruent. State each result in symbolic form.
Find:$\frac{7}{11}\text{ of }₹\ 330$
→Find the fourth proportional to the number:
2, 8, 14, 3.5
2, 8, 14, 3.5