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3 years ago

Summer school please help

Mathematics

1 answer:

GalinKa [24]3 years ago

5 0

Step One
Set up a proof for congruent triangles.
By SAS The triangles are congruent. That comes from the fact that <ABD = <ABE (a perpendicular to a straight line will produce 2 right angles) if they are interior to a triangle as well)
DB = BE That comes from the bisector part of the givens.
AB = AB That's always true.

AD = AE Congruent triangles have equal corresponding sides.

Step Two
Set up the equation.
AD = AE
x - 10 = 2x - 34 Add 34 to both sides.
x - 10 + 34 = 2x
x + 24 = 2x Subtract x from both sides.
24 = 2x - x
24 = x

Answer C <<<<<

Problem 2
Find AD if AD = x - 10

Givens
x = 24 from the previous question.

Solve
AD = 24 - 10
AD = 14

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3 years ago

the width of a rectangle is x centimetres and its length is (x+ 2) cm. Write down an expression for the perimeter of the rectang

yKpoI14uk [10]

Given:

The width of a rectangle is x centimeters and its length is (x+ 2) cm.

To find:

The expression for the perimeter of the rectangle.

Solution:

We know that, perimeter of a rectangle is

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Length = (x+2) cm

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3 years ago

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ahrayia [7]

So,

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Add.
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Convert into improper fraction form.
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Multiply.
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3 years ago

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garik1379 [7]

Answer:

not sure what type you mean but here are options

Step-by-step explanation:

30+4=34

thirty-four

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2 years ago

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Furkat [3]

Answer:

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Step-by-step explanation:

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