In a right-angled triangle calculate the length of the hypotenuse when the side lengths at 5cm and 7cm. Leave your answer as a surd.
Using pythagoras’ theorem:a^2 + b^2 = c^2
hypotenuse = sqrt(5^2 + 7^2) = sqrt(25+49) = sqrt(74)
Related Maths GCSE answers
All answers ▸Calculate the area of a sector which has an acute angle of 30 degrees and a radius of 5cm.
In the isosceles triangle ABC, AB=AC and angle B=(3x +32)degrees and angle C=(87-2X)degrees
Factorise x^2 -7x+10, and hence solve x^2-7x+10=0
Factorize the following expression and solve for x: X^2 +7X +10=0