STEP 1
Mean =

STEP 2
Subtract the mean from each data value then square the answer

⇒


⇒


⇒


⇒


⇒


⇒

STEP 3
Add the squared answers in STEP 2 then find the mean

STEP 4
Square root the answer in STEP 3

Standard deviation is 236.5
Answer: Equilateral triangles.
Explanation: We know that in similar polygons, its all the corresponding angles are congruent. Only the set of equilateral triangles contains members that are always similar( by AAA similarity criteria) to one another as the measure of all the angles of equilateral triangle is fixed i.e. 60°.
Rest other do not have fixed measure for angles in it.
Answer:
-2
Step-by-step explanation:
237.3f= 1b. Explanation: is 712/3(237.3) so 1b is 237.3f
I don't know hibgiuuibbohubhouhigohiboihbobihioijboib