Question

In the figure,
if m angle B=90°, then m=?
9
(1) 15
(2) 18
(3) 21
(4) 12​

Answer 1

Answer:

option 4.is the correct ✅one

Step-by-step explanation:

by using Phytagarous theorem

from fig

$ac {}^{2} = ab { }^{2} + bc {}^{2}$

$9 {}^{2} + 12 {}^{2}$

$81 + 144$

$ac = \sqrt{225}$

$ac = 15$

if ac is 15 then m=12

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