Answer:
u add 45 + 45 +90 that’s 180 and all triangles equal 180
Step-by-step explanation:
Last one:
In the picture a=2, b=4a, b=4•2=8
1st picture a=3, b=4a, b=4•3=12
2nd picture a=0.5, b=4•0.5=2
3rd picture a=2.5, b=4•2.5=10
4th picture a=4, b=4•4=16, but in the picture b=10 therefore, this rectangular is NOT similar to rectangular ABCD.
Answer:
36:56
Step-by-step explanation:
(2,0)
the first # is the x coordinate which is left and right. Since B is 2 to the right from the center (0,0) x is 2. Left would make it negative
The second # is the y coordinate which is up and down. Since B is on the x axis the y coordinate is 0.
Answer:
252 cm²
Step-by-step explanation:
Lateral surface area = area of the 3 triangular surfaces (the base is not included)
Area of 1 triangular face = ½*bh
b = 12 cm
h = 14 cm
Area = ½*12*14 = 6*14
Area = 84 cm²
✅Lateral surface area = 3(84) = 252 cm²
