3 years ago

I will give you a Brainly crown if it is right. Will you help me plzzzzzz helplpppppp

Mathematics

2 answers:

iris [78.8K]3 years ago

8 0

Answer:

Step-by-step explanation:

The whole thing equals 360

so have equals 180

and half of one 180 is 90 and you're trying to find that half of 180.

neonofarm [45]3 years ago

4 0

Answer:

Step-by-step explanation:

A semicircle is 1/2 of a circle

A circle is 360 degrees

1/2 is 180

We have 90 degrees already used on the left

180-90 = 90

b = 90 degrees

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