3 years ago

the perimeter of a triangle is 49cm.One side is 7cm longer than another side and 5cm shorter than the third side find sides

Mathematics

1 answer:

pogonyaev3 years ago

8 0

P = a + b + c = 49 cm

a = b + 7 => b = a - 7

a = c - 5 => c = a + 5

_____________________

a + (a - 7) + (a + 5) = 49

3a = 49 + 7 - 5

3a = 51

a = 17 cm

b = 17 - 7 = 10 cm

c = 17 + 5 = 22 cm

You might be interested in

18000 divided by 67= ?

Greeley [361]

Answer:

18000/67 是 268.657

希望有帮助:)

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Tim is remodeling his square kitchen but has forgotten the dimensions. He knows he had bought 81 square feet of tiles earlier, a

sammy [17]

Answer:

C) 36 feet

Explanation:

P(square)= 4s

s= square root of the area

$4 \times \sqrt{a} \\ a = 81 \\ 4 \times \sqrt{81} \\ 4 \times 9 \\ = 36$

4 0

3 years ago

Solve integer 25+(-13)

Taya2010 [7]

Answer:

i think thats 12

Step-by-step explanation:

5 0

4 years ago

Read 2 more answers

Can someone help me please

kotegsom [21]

Answer:

AD||BC

Step-by-step explanation:

Given:

m∠3=m∠B

And if a traversal cuts two lines such that the corresponding angles are equal then the lines are parallel

Hence the lines AD and BC are parallel

AD||BC !

6 0

3 years ago

FIND THE X AND Y-INTERCEPT FROM THE EQUATION GIVEN BELOW Y=2X +4

Semenov [28]

The Y intercept is (0,4)
The X intercept is (-2,0)

4 0

3 years ago