in geography latitude is geographic coordinate that specifies the north from the south position of the point on Earth's surface latitude is an angle which ranges from at least 0 degrees from the equator up to 90° at the poles lines of constant latitude or parallel run east to west as circles parallel to the equator .
longitude is a geographic coordinate that specifies the east from the West position of the point on Earth's surface or the surface from this sisal body it is an irregular regular measurement usually expressed in degrees and denoted by the Greek letter lambda the meridians connect points with the same longitude latitude.
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If you divide by 20 from 10 then multiply by 15 you will get 3.9
Each rectangle is (18cm)(10cm)=180 square cm.
180 square cm/45 square cm=4. she cuts four triangles from each rectangle
(4 patches/rectangle)(32 rectangles)=128 patches
Answer=128 patches