PLS HELP HURRY ILL MAKE AS BRAINLESS WAHST THE ANSWER TO THESE 2 QUESTIONS

Answer:
all you have to do is use a calulater i dont remember how to do that sorry
Step-by-step explanation:
Answer:
868.5 cm²
Step-by-step explanation:
convert 450 mm to cm.
45
calculate
45 × 38.6
1737
then divide by 2 because this is a triangle.
1737 ÷ 2
868.5
The area of this figure is 868.5cm²
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