Tinkets:

now the next step

since you know x, you're able to substitute

so trinket: $7.5
doodad: $4.375
Area = 1/2 (Base1 + Base2) x height
Area = 1/2 (25 + 38.25) x 20
= 632.5 sq mm
The measure of ∠STU = ∠VWX = 90°
Hence, ∠STU≅∠VWX.
What is Perpendicular line?
Two lines that meet or intersect each other at right angles is called a Perpendicular line.
Given that;
TU ⊥ ST
WX ⊥ VW
Now,
When TU ⊥ ST
Then by the image,
∠STU = 90°
When, WX ⟂ VW.
Then by image,
∠VWX = 90°
Hence, The measure of ∠STU = ∠VWX = 90° (right angle)
So, ∠STU ≅ ∠VWX.
Learn more about the perpendicular lines visit:
brainly.com/question/1202004
#SPJ1
The formula for volume of a prism is length x width x height
If we plug in the given numbers: 4.2 x 7 x 15
We get an answer of 441 cm^3