alleryIn an isosceles right triangle each equal side is 10 cm. The hypotenuse is
A5 sqrt(2) cm
B20 cm
C10 sqrt(3) cm
D10 sqrt(2) cm
Answer & Solution
Correct answer: D. 10 sqrt(2) cm
1. Two legs equal 10 cm each.
2. c^2 = 100 + 100 = 200.
3. c = sqrt(200) = 10 sqrt(2) cm.
4. So option A is correct.
_Source: Selina Concise Mathematics Class 9, Ch on Pythagoras Theorem (Mistral OCR'd PDF), section on isosceles right triangle_
Keep practising Algebra: Expansions, Factorisation & Indices
Browse all Algebra: Expansions, Factorisation & Indices questions for ICSE Class 10, or explore more Mathematics topics.
Related questions
Zero slope, undefined slope, or neither?The point (-4, 5) lies onThe point of intersection of the x-axis and the y-axis is called theThe point (3, -2) lies in which quadrant?If a point lies on the y-axis, its x-coordinate isThe co-ordinates of a point are written in the orderMatch each three-variable identity with its expanded polynomial:Match each quadratic trinomial with its factored binomials: