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3 years ago

13

Find the value of x. The angles are in the picture! Please quick I will give Brainliest!

1 answer:

Tcecarenko [31]3 years ago

7 0

Answer:

x = 50

Step-by-step explanation:

The interior angles of a Pentagon adds up to 540.

90 + 125 + 125 + 2x + 2x = 540

340 + 4x = 540

4x = 200

x = 50

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professor190 [17]

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3 years ago

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Sveta_85 [38]

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Step-by-step explanation:

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3 years ago

WILL GIVE BRAINLIEST

scoray [572]

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3 years ago

What is the area of triangle DEF?

FrozenT [24]

Answer:

$A=2\sqrt{14}\ units^2$

Step-by-step explanation:

we know that

Heron's Formula is a method for calculating the area of a triangle when you know the lengths of all three sides.

so

$A=\sqrt{s(s-a)(s-b)(s-c)}$

where

a, b and c are the length sides of triangle

s is the semi-perimeter of triangle

we have

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<em>Find the semi-perimeter s </em>

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3 years ago

slava [35]

Answer:

Equation 1 x=-16

Equation 2 m=-3

Step-by-step explanation:

Equation 1

3x-x=-24-6

2x=-32

x=-32/2

x=-16

Equation 2

-2m=16-10

-2m=6

m=6/-2

m=-3

6 0

3 years ago