calculate area of an equilateral triangle whose height is 20 cm
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hope this will help you
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mehul40:
no its height is 20 not all sides
bro it is an equilateral triangle
ok let me check area
ok u will check bro
answer is incorrect
what is correct one
Answered by
7
we know that AB=AC=BC=20.
This means that the height cuts AB in two equals parts, AH and HB, each 10 units long.
This means that, for example, AHC is a right triangle with AC=20 and AH=10, so
CH=√AC2−AH2=√202−102=√300=10√3
Since we know the base and the height, then the area is
20⋅10√32=100√3
This means that the height cuts AB in two equals parts, AH and HB, each 10 units long.
This means that, for example, AHC is a right triangle with AC=20 and AH=10, so
CH=√AC2−AH2=√202−102=√300=10√3
Since we know the base and the height, then the area is
20⋅10√32=100√3
what
Pythagoras theorm
ok
bro agar na aaye toh mujhe btana mai again try karunga ok
ok bro
kk..
nahi aya
ok bro i will try wait
plz tell me exact answer
230.9 cm^2
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