Isabela calculates the sum of the first ^@n^@ positive integers and finds that the sum is ^@4563^@. If she has counted one integer twice, which one is it?
Raissa was getting late for her match. While running out the door, she picks up a fruit from the fruit basket which had the following fruits. What is the probability that Raissa did not pick a pomegranate?
Which of following is false about the congruence of triangles?
A.
Two triangles are congruent if two sides and the angle included between them in one of the triangles is equal to the corresponding sides and the angle included between them of the other triangle.
B.
Two triangles are congruent if three sides of one triangle are equal to the three corresponding sides of the other triangle.
C.
Two triangles are congruent if two angles and the side included between them in one of the triangles is equal to the corresponding angles and the side included between them of the other triangle.
D.
Two right-angled triangles are congruent if the hypotenuse of one of the triangles is equal to the hypotenuse of the other triangle.
Sidney changes a picture on his computer such that the width of the image is 50% of the original image and the height of the image is 70% of the original image. If the area of the new image is 42 cm2, find the area of the original image.
In this picture, consider dotted line as the mirror and complete the figure using the mirror image on the right side. What is the shape of the complete figure after adding the mirror image?
During study, Amanda finished ^@\dfrac{ 5 }{ 8}^@ of the problems of her math homework. Carolina did ^@\dfrac{ 1 }{ 15}^@ of the problems from her math homework. Who did a lesser fraction of her math problems?
Brazil
