408,323 views
8 votes
8 votes
Please help, super easy 7th grade math! worth a lot of points

Please help, super easy 7th grade math! worth a lot of points-example-1
User BasssS
by
2.7k points

2 Answers

11 votes
11 votes
You must take the total perimeter and subtract what you know to find the missing side. So 152-30-20-35= 57
User Khachik
by
3.5k points
23 votes
23 votes

Answer:

57mm

Explanation:

Length of missing side= perimeter- known lengths

= 152mm- (30+20+45)mm

= (152 - 95)mm

= 57mm

User Kumar Nishant
by
2.4k points