Triangle is right-angled at with and

MATHEMATICS · Single correct · CBSE · Mathematics · Triangles · Triangles

Problem

Triangle

ABC

is right-angled at

B

with

AC = 17\text{ cm}

and

AB = 3x - 5\text{ cm}

. Triangle

DEF

is right-angled at

E

with

DF = 17\text{ cm}

and

DE = 7\text{ cm}

. If the two triangles are congruent, what is the value of

x

? (a) 5 (b) 4 (c) 3 (d) 6