BAC=ABD. therefore ABD = 20°
BDA = 180° - 20° -20° = 140°
BDC = 180° - 140° = 40°
BCD = 180° - 40° - 20° = 120°
2n < 25 + 7
2n < 32
n < 32/2
Answer: Since thirty-two divided by two equals sixteen we add that with n and we get our answer which is n < 16
Answer= 42
Explanation: 7*6=42 42+6=48
The answer is the option B. rotate 90 degrees counterclokwise and then rotate 270 degrees counterclockwise.
See that two consecutive rotations counterclockwise are equivalent to one single roration counterclockwise as long as the angles sum up the same.
Given that 90° + 270 ° = 360° means that the two rotaions are equivalent to one 360° rotation, and so the final figure will be the same as the original figure.
Answer:
7a²/16
Step-by-step explanation:
Area of the triangle PTS
½ × a × a
a²/2
Length of PS:
sqrt(a² + a²)
asqrt(2)
Length of MS:
¼asqrt(2)
Triangles MCS and TPS are similar
With sides in the ratio:
¼asqrt(2) : a
sqrt(2)/4 : 1
Area of triangle SMC:
A/(a²/2) = [(sqrt(2)/4)]²
2A/a² = 1/8
A = a²/16
Area of PTMC
= a²/2 - a²/16
= 7a²/16