21. If the straws had been straight, then the above-mentioned angle would be exactly the interior angle of a pentagon. 22. Geometry 101 says that two triangles with the same interior angles are SIMILAR and the ratio of their sides is the same. 23. The hindwings are metallic-purple at the tips and a metallic-purple patch on each side of the interior angle . 24. The hindwings are white, semihyaline and iridescent, with a brown border, which does not extend to the interior angle . 25. Take this theorem as an example, we can use interior angle of parallel line to show that the base angles are equal. 26. The fifth intersects the exterior part of the band and extends to the interior angle and the sixth is in the submarginal disc. 27. Then one of the alternate angles is an exterior angle equal to the other angle which is an opposite interior angle in the triangle. 28. The other interior angle ( at the North Pole ) can be made larger than 90? further emphasizing the failure of this statement. 29. There is a white bent transverse line extending from the fourth mark to the interior angle and the marginal points are black and minute. 30. There are some elongated black costal points and a black streak by the interior angle and another near the base of the interior border.
