Answer:
B
Step-by-step explanation:
180°= straight line
180°-42°=138
Answer:
12cm²
Step-by-step explanation:
Area of triangle =1/2×h×b
1/2×4×6
2×6
12cm²
hope dis helps!!!!!
Answer:
b = 23
Step-by-step explanation:
46/b = 2
Multiply both sides by b.
46 = 2b
Divide both sides by 2.
b = 23.
Proof:
46/b = 2
Substitute value.
46/23 = 2
Divide.
2 = 2.
Answer:
5![\sqrt{2}](https://tex.z-dn.net/?f=%5Csqrt%7B2%7D)
Step-by-step explanation:
The diagonal divides the square into 2 right triangles.
let s be the side of the square with the diagonal being the hypotenuse.
Applying Pythagoras' identity to one right triangle, gives
s² + s² = 10² , that is
2s² = 100 ( divide both sides by 2 )
s² = 50 ( take the square root of both sides )
s =
=
=
×
= 5![\sqrt{2}](https://tex.z-dn.net/?f=%5Csqrt%7B2%7D)
Answer:
rounding to the nearest tenth
Step-by-step explanation: