Question

this is mcq but need to solve it ​

Answer 1

Answer:

for which grade this question issas

Answer 2

Answer:

Step-by-step explanation:

(Triangles are congruent by AAS rule since

Both triangles have 90 degrees

Both triangles have a same angle

Both triangles have 5cm side (5cm side is common)

Therefore they are congruent

So by CPCT QR = RS)

Now,

Since Triangle PRQ is a right triangle

QR^2 = PR^2 - QP^2 ('^' indicating a power symbol)

QR^2 = 25 - 9

QR^2 = 16

QR = 4

By above CPCT,

QR = RS

So RS = 4cm (b)