JAMB Mathematics 2021 Objective — Question 14

Question 14 of 40 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2021 Objective paper, with the correct answer and a full explanation.

14. A right-angled isosceles triangle has the hypotenuse 8cm, the length of each of the other two sides is (a) 4√2cm (b) 2√2cm (c) √2cm (d) √2/2 cm

A. 4√2cmCorrect
B. 2√2cm
C. √2cm
D. √2/2 cm

Explanation

By Pythagoras' theorem, since both legs are equal (x), 8² = x² + x², so 64 = 2x², x² = 32, x = √32 = 4√2cm.

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