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2 years ago

CCSS Math 7

Mathematics

1 answer:

Andre45 [30]2 years ago

7 0

Answer:

a = 112

b = 68

c = 68

a = 127

a=35

b=40

c=35

d=70

a= 30

b=70

c = 30

d=70

e = 130

I'll help you with the rest later

Step-by-step explanation:

a = 112 because of allied angles rule

b and c = 68 because of angles at a point

360-112-112 ÷2

2. a = 127 because of angles on a straight line rule.

180-38-15

3. d= 70, vertically opposite angle

using angles on a straight line, 180 - 70 - 40 ÷ 2

we now have the two angles and because they are vertically opposite a and c = 35

b = 40 because of vertically opposite angles

4. a=30 because 90-70

since a=30, take 90 - 30 to get b, 70

d= 70, vertically opposite angles

e = 130 because a+b+c, vertically opposite angles

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If two triangles are congruent, then the angles are congruent.

∠A = ∠E (Alternate interior angles)

∠C = ∠C (Reflexive property)

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Your question isn't well written but I saw an identical question:

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