The answer would be answer choice B.
Answer:
(a)
Step-by-step explanation:
The tangent and the normal at point P are perpendicular.
Given
= 3, then
Given the gradient m of the tangent then the gradient of a line perpendicular to it is
= - 
= - 
→ (a)
Answer:
-1/5
Step-by-step explanation:
Answer:
Option D, 140 sq. units
Step-by-step explanation:
Area of the rectangle part, 11*5 = 55 sq. units
Area of the pentagon part (3.4*5)*5/2 = 42.5 sq. units
Total area,
55+2*42.5 sq. units (since there are two pentagons)
= 55+85 sq. units
= 140 sq. units
Answer:
72
Step-by-step explanation:
you take the two 54's and add them together and get 108 then you take 108 and subtract it from 180 because that's what the angles of all triangles add to and you get 72
