Answer:
the areas of these triangles are 83.2cm² and 46.8cm²
Step-by-step explanation:
1. If the triangles are similar and the ratio of the perimeter ois 4:3, then the areas are in the following ratio:
4²:3²
16:9
2. The sum of their areas is 65 cm², then, you can calculate the area of the larger triangle as following:
130(16/16+9)
130(0.64)
=83.2cm²
3. The area of the smaller triangle is:
130(9/16+9)
130(0.36)
46.8cm²
Answer:
Step-by-step explanation:
Calculate the product:
Rearrange the terms:
Combine like terms:
Calculate:
Answer:
7
Step-by-step explanation:
Answer:
n+p=21
Step-by-step explanation:
7n+7p=147si
7(10.5) +7(10.5)=147si
73.5+73.52=147si
Answer:
Gordon gets £72
Step-by-step explanation:
£240....together
Sara.....2*(3x)
Gordon.....3x
Makachy......x
2*(3x)+3x+x=240
6x+3x+x= 240
10x=240/10
x=24
Gordon 3*24= 72
