3 years ago

Can someone help me with numbers 18 and 20? thank you!

Mathematics

1 answer:

alekssr [168]3 years ago

6 0

Answer:

18. x= 15

19. x = 32.5

20. 82.097

Step-by-step explanation:

because any trianglw with 65 degrees the other abgle will be equal making the side equal as well

180-115= you know

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Can someone please help me

Bad White [126]

Answer:

Step-by-step explanation:

Lateral Area:

We have four congruent triangles with base b = 16cm and height h = 12cm.

The formula of an area of a traingle:

$A_\triangle=\dfrac{bh}{2}$

Substitute:

$A_\triangle=\dfrac{(16)(12)}{2}=(8)(12)=96\ cm^2$

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Surface Area:

$S.A.=B+L.A.$

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$A_\square=s^2$

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