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Usimov [2.4K]
2 years ago
8

Help this question question

Mathematics
1 answer:
Step2247 [10]2 years ago
7 0

Answer:

-65 i suppose

Step-by-step explanation:

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PLEASE HELP FAST<br> W=235 - 2.5t
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A rectangle has is 70 cm long and w cm wide. The perimeter of the rectangle is 182 cm. What is the width, w?
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1 year ago
The perimeter of a triangle is 93 ft. Side a of the triangle is twice as long as side b. Side c is 3 ft longer than side a. Find
Sunny_sXe [5.5K]

The length of side a is 36 feet and side b is 18 feet and side c is 39 feet

<em><u>Solution:</u></em>

Given that perimeter of triangle is 93 feet

The three sides of triangle are a, b, and c

<em><u>Given that Side a of the triangle is twice as long as side b</u></em>

side a = 2 times side b

a = 2b

b = \frac{a}{2}  ---- eqn 1

<em><u>Given that Side c is 3 ft longer than side a</u></em>

side c = 3 + side a

c = 3 + a ------ eqn 2

<em><u>The perimeter of triangle is given as:</u></em>

p = a + b + c

Where a, b, c are the length of sides of triangle

Substitute eqn 1 and eqn 2 in above formula

p = a + \frac{a}{2} + 3 + a

Given that perimeter = 93

93 = a + \frac{a}{2} + 3 + a\\\\93 = \frac{2a + a + 6 + 2a}{2}\\\\93 \times 2 = 2a + a + 6 + 2a\\\\186 = 5a + 6\\\\5a = 186 - 6\\\\5a = 180\\\\a = 36

Thus length of side a = 36 feet

<em><u>Length of side b :</u></em>

from eqn 1

b = \frac{36}{2} = 18

b = 18 feet

<em><u>Length of side c:</u></em>

From eqn 2,

c = 3 + 36 = 39

c = 39 feet

Thus length of side a is 36 feet and side b is 18 feet and side c is 39 feet

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3 years ago
In this polygon, which angle is an interior angle?
mihalych1998 [28]

Answer:

Step-by-step explanation:

D

8 0
2 years ago
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