Question

tell me the answer of 7,9and 10 question

Answer 1

Answer:

Step-by-step explanation:

Hey mate

I'm sorry I know only 9th sum

In square all sides are equal

So

AB=BC

2X+3=3X-5

SIMPLIFYING THIS WE GET

-X=-8

THEREFORE

X=8

Answer 2

Let one angle be x
Let another angle be 2/3x
x+2/3x=180
5/3x=180
x=180×3/5
x=36×3
x=108
so one angle is 108°
another angle is 2/3x
2/3×108
72°

10.
x+y=180
y=2x-24
x+2x-24=180
3x=180+24
3x=204
x=204÷3
x=68°
y=2(28)-24
y=112°
hope this answer helps you
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