Answer:
Perimeter = 100mm
Area = 60mm
Step-by-step explanation:
P= (3x2) + (2x2) =10cm
10mm to 1cm
10cm x 10 = 100mm
A= b x h
= 3 x 2
=6cm
6x10=60mm
8+7=15
75 divided by 15 = 5
Each unit =5
8 x 5 = 40, so Debbie gets 40 smarties
7 x 5 = 35, so Dave gets 35 smarties.
Answer:
C) Similar but not congruent
Step-by-step explanation:
These figures are similar not congruent because:
In order for a triangle to be congruent it has to be the same size and shape.
There is no such thing as congruent but not similar as if it's congruent it is similar.
However, in order for a triangle to be similar it must have the same shape( angles).
So we can see that both triangles are isoceles and the sides of each are in a ratio of 2:1. Meaning that the bigger triangle has sides that are exactly twice as large as the smaller trinage. This also means that the angles are equal. Hence they are similar but not congruent.
Full circle = 2 x 30 x PI = 60 PI
XY = 90 degrees
XPY = 360 -90 = 270 degrees ( 3/4 of a full circle )
XPY = 3/4 x 60PI = 45PI
answer is C 45PI
