Question

please can someone help solve this?

Answer 1

Step by step explanation:

=(10y+2) + (9y-3) + (10y+1) + (11y+10) + 90

=(10y+9y+10y+11y) + (2-3+1+10+90)

=40y + 100

We know that some all interior angles of a quadrilateral is 360 degrees

=> 40y + 100 = 360

=>40y = 260

=>y = 6.5

Answer 2

Answer:

Hello army!

I can help you!!

Step-by-step explanation:

TOTAL ANGLE OF A RIGHT ANGLED PENTAGON = 550

$9y - 3 + 10y + 1 + 11y + 10 + 90 + 10y + 2 \\ = 30 + 110 + 2 + 10 + 2 \\ = 140 + 12 \\ = 152 \\ y = \binom{152}{4} \\ = 51 \\ y = 11$

Hope it will help you

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